Patents Assigned to Retro Filters LLC
  • Patent number: 8956432
    Abstract: A reusable aftermarket particulate collection member for use with an otherwise conventional floor vacuum cleaner. The collection member is formed of a size, shape and configuration as to be an aftermarket replacement for a conventional, disposable paper type vacuum filter bags used with said conventional vacuum cleaners. An open end is formed on the collection member, and the collection member is further formed of a woven and/or nonwoven fabric. Said member having a slip clamp fastener arrangement for sealing the open end during use, but for allowing said opening to permit egress of collected contents. An entry portal formed within a sidewall of said collection member is circumscribed by a rigid mounting plate adapted to allow for securement to a hose inlet.
    Type: Grant
    Filed: December 30, 2011
    Date of Patent: February 17, 2015
    Assignee: Retro Filters LLC
    Inventors: Robert Mark Herndon, Lucy Herndon, Ernest J. Zavoral, Sr.